Means for controlling the draft of locomotive-furnaces.



J. FOURNIA. MEANS FOR CONTROLLING THE DRAFT 0F LOOOMOTIVB FURNACES. APPLICATION FILED MAR. as, 1900.

992,123; Patented May 9, 1911.

run NORRIS Farina cm, WASHINGTON. n. c

UNITED STATES PATENT OFFICE.

JOHN FOURNIA, OF ALBANY, NEW YORK, ASSIGNOR OF ONE-HALF TO FREDERICK R. GREENE, OF ALBANY, NEW YORK.

1VIEANS FOR CONTROLLING THE DRAFT OF LOCOMOTIVE-FURNACES.

To all whom it may concern:

Be it known that I, JOHN FOURNIA, a zen of the United States, residing at the city of Albany, in the county of Albany and State of New York, have invented certain new and useful Improvements in Means for Controlling the Draft of Locomotive-Furnaces, of which the following is a specification.

My invention relates to locomotive furnaces, and the object of my invention is to provide a means for equalizing and regulating the draft thereof. I accomplish these objects by means of the mechanism illustrated in the accompanying drawings, in which:

Figure 1 is a side elevation of a locomotive. Fig. 2 is a section of my invention. Fig. 3 is a rear elevation thereof.

Similar letters refer to similar parts throughout the several views.

In the smoke box, W, forward of the boiler, A, I place a box, E, supported by a plate, T, which plate extends from one side of the smoke box to the other, or may be supported in any suitable manner. The box, E, has an opening, L, at its end toward the front of the engine, in which opening, L, I may place a screen, Z, as shown in Figs. 1 and 2. The opening, L, in the box, E, is so arranged that it is centrally disposed in reference to the openings of the fines in the end of the boiler, A.

Into the box, E, the exhaust nozzle, G, projects through the opening, F, and I arrange in the side of the box, immediately above the opening, F, and nozzle, G, an enlarged opening, H, above which I place a pipe, K, which connects with the smoke stack J. The mouth of the nozzle, G, is preferably in the opening, H, on a line with the upper surface of the box, E. As thus arranged the exhaust will create a suction through the box, E, on the contents of the smoke box, WV, which will operate equally upon all of the flues of the boiler, and will not, as is the case in locomotive boilers with which I am familiar, act upon the lower flues with greater force than upon the higher ones.

For the purpose of regulating the action of the exhaust on the fines and fire, I place a damper, M, in the box, E, between the exhaust nozzle, G, and the opening, L, which damper may be operated by means of the Specification of Letters Patent.

Application filed March 28, 1908.

Patented May 9, 1911.

Serial No. 423,802.

handle, N, on the rod, 0, to which the clamper is secured, the handle, N, being outside of the smoke box.

For the purpose of cleaning the smoke box of cinders which have a tendency to collect on the bottom or floor thereof I preferably place a spark flue, B, communicating with the box, IE, and which has one end a short distance above the bottom or floor of the smoke box. The exhaust would create a suction on the cinders and draw them through the box E and discharge them through the smoke stack, J, and if desired I may place in the spark flue, B, a damper, C, having a handle, D, operated outside of the smoke box, whereby the discharge of cinders and sparks may be controlled or prevented. I have shown the damper C operated by the handle D and damper M operated by the handle N, both at the side of the locomotive. I may, however, by suitable rod, or other mechanism extending from the handles, to the cab, operate these dampers from within the cab of the locomotive.

My invention enables me to obtain an equal draft through all of the flues of the boiler and prevent the exhaust from forcing the draft through the lower flues while the water in the upper portion of the boiler is unaffected by the heat, as is the case in other engines with which I am familiar. And I am also able to control the efiect of the exhaust upon the fire through the flues, and to prevent the escape of cinders and sparks, at places where their emission would do great damage, and cause their discharge where they would do no harm.

I do not wish to limit myself to the form or construction or manner of mounting the box into which the exhaust nozzle projects. The main feature of the invention is the arrangement of the exhaust within a suitable receptacle placed in the smoke box, which receptacle has an opening toward the front of the engine, substantially equi-distant from corresponding flues in the end of the boiler.

What I claim as my invention and desire to secure by Letters Patent 1s:

1. The combination in a locomotive having a steam boiler and a smoke box; a box placed forward of the boiler in the smoke box thereof provided with an opening at its end toward the front of the engine, forward of the exhaust; a screen placed in said open ing; an exhaust nozzle projecting into said box having its mouth substantially on a line with the upper surface of the box; a smoke stack; a pipe connecting the smoke stack with said box above said exhaust nozzle; a means in said box for regulating the force of the exhaust upon the contents of the smoke box.

2. A locomotive provided with a steam boiler; a smoke box; a smoke stack connect 'ed with said smoke box; an exhaust nozzle in said smoke box; a box placed in said smoke box having an opening toward the front of the locomotive centrally disposed with reference to the end of the boiler, said exhaust nozzle projecting into said box; a means for conducting the exhaust from said nozzle and the contents of said smoke box to said smoke stack; a spark flue connected with said box and having an opening a short distance above the floor of the smoke box, substantially as described.

8. The combination in a locomotive having a steam boiler and a smoke box; a box placed forward of the boiler in the smoke box thereof and communicating directly therewith only forward of the exhaust nozzle, which communication is centrally disposed with reference to the end of the boiler; an exhaust nozzle projecting into said box; a spark flue communicating with the box, which has one end thereof a short distance above the box, which has one end thereof a short distance above the bottom or floor of the smoke box; a damper in said spark flue; a means for conducting the exhaust from said nozzle and the contents of said smoke box to said smoke stack, substantially as described.

4c. In a means for controlling the draft of locomotive furnaces a boiler, a smoke box; a box having an opening in one end; a support for said box in the smoke box of the locomotive, so arranged that the opening therein is formed of the exhaust nozzle; an exhaust nozzle projecting into said box; a spark flue connected with said box and extending from the bottom of the box to near the bottom of the smoke box, forward of the boiler; a pipe connecting said box immediately above the exhaust nozzle with the smoke stack, substantially as described.

5. The combination in a locomotive having a steam boiler a smoke box; a box placed in the smoke box and communicating directly therewith only forward of the exhaust nozzle; a spark flue connected with the said box in the smoke box extending to nearly the bottom of the smoke box; an exhaust nozzle passing into said box; a smoke stack; a smoke pipe connecting said box with the said smoke stack.

6. The combination in a locomotive having a steam boiler and a smoke box of an exhaust nozzle; a spark flue placed forward of the boiler and adapted to receive the sparks and cinders from the locomotive; a box with which said spark flue communicates and into which said nozzle projects, having its one direct opening into the smoke box forward of the exhaust nozzle; a support for said box; a screen on the end of said box; a means for connecting said box with the smoke stack of the locomotive; with a means for controlling the discharge of the smoke, gases and cinders.

In testimony whereof I have afiixed my signature in presence of two witnesses.

JOHN FOURNIA.

WVitnesses:

LOTTIE PRIOR, FREDERICK W. CAMERON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

